modernise the development environment a bit

[h-bragg]

• Modify the development environment to use docker instead of Vagrant.
• Update coding standards.

List of all changes

1. Deleted Vagrantfile
2. Updated .travis.yml to support more versions
3. moved all commands to docker
4. added docker-compose.yml file with: test/node/composer services
5. use graze/composer to run composer
6. use graze/php-alpine to run tests
7. use node:8 to run the node test server
8. Fixed the markdown in README.md
9. Removed the .lock files from the .gitignore file and committed them
10. Added phpcs linting based on graze/standards
11. Added scruitinzer badges to README
12. Fixed items flagged by phpcs
13. Updated the Makefile with help, lint, test-coverage targets
14. Fixed various scruitinzer issues
15. Fixed some tests that were not being run correctly (namely BatchFunctionalTest)

[biggianteye]

A make help target would be nice.

[h-bragg]

@biggianteye went and did some other bits that spawned from a re-look.

namely committing .lock files because of https://yarnpkg.com/blog/2016/11/24/lockfiles-for-all/

[biggianteye]

The gitignore file which ignored composer.lock is from the skeleton project. Is it worth updating that as well?

[h-bragg]

Yeah, we should probably update the skeleton project

[biggianteye]

Scrutinizer is failing because of doctrine/instantiator. Sigh.

[h-bragg]

I am hoping that disabling the tests in scrutiniser will help... lets see...

[biggianteye]

I'll review the the guzzle 3/4/5 PRs once this one is merged.